TY - BOOK AU - Bull, Richard J., AU - Kopfler Frederick C. ED - American Water Works Association TI - Health effects of disinfectants and disinfection by-products SN - 0898675669 AV - QD142 B85 PY - 1991/// CY - Denver, colorado PB - American water works association KW - Agua KW - Purificación KW - Análisis ER -